U.S. patent application number 16/630178 was filed with the patent office on 2021-11-18 for substrate.
This patent application is currently assigned to JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED. The applicant listed for this patent is JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED. Invention is credited to Daisuke HIRAOKA, Osamu HIRATA, Kenta TSUCHIYA.
Application Number | 20210358654 16/630178 |
Document ID | / |
Family ID | 1000005806650 |
Filed Date | 2021-11-18 |
United States Patent
Application |
20210358654 |
Kind Code |
A1 |
TSUCHIYA; Kenta ; et
al. |
November 18, 2021 |
SUBSTRATE
Abstract
A substrate is transparent and has a mesh shape conductor
pattern. In a first substrate, a conductor pattern includes arrays
of circular closed curves, and respective adjacent arrays include
arrays different in period, waveform, or phase. In a second
substrate, the mesh shape is formed by two or more types of
circular closed curves. In a third substrate, the mesh shape is
formed by three or more types of circular closed curves. In a
fourth substrate, a single type of circular closed curves is used,
and one circular closed curve is surrounded by six circular closed
curves. In a fifth substrate, a single type of circular closed
curves is used. However, four circles contact with one circle at
top, bottom, left, and right, is excluded. In a sixth substrate,
one or more types of circular closed curves are used, and three or
more types of openings are formed.
Inventors: |
TSUCHIYA; Kenta; (Tokyo,
JP) ; HIRAOKA; Daisuke; (Tokyo, JP) ; HIRATA;
Osamu; (Tokyo, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED |
Tokyo |
|
JP |
|
|
Assignee: |
JAPAN AVIATION ELECTRONICS
INDUSTRY, LIMITED
Tokyo
JP
|
Family ID: |
1000005806650 |
Appl. No.: |
16/630178 |
Filed: |
June 4, 2018 |
PCT Filed: |
June 4, 2018 |
PCT NO: |
PCT/JP2018/022130 |
371 Date: |
January 10, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B32B 7/023 20190101;
E06B 9/24 20130101; H01B 5/14 20130101; B60J 3/007 20130101; B32B
17/1022 20130101; B32B 17/10174 20130101; G02B 27/0025
20130101 |
International
Class: |
H01B 5/14 20060101
H01B005/14; G02B 27/00 20060101 G02B027/00 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 25, 2017 |
JP |
2017-161942 |
Claims
1. A substrate that is a transparent substrate, in which a
conductor pattern having a mesh shape is formed, wherein the
conductor pattern includes a part composed of a plurality of arrays
of circular closed curves, respective adjacent arrays include
arrays different in any of period, waveform, or phase, and the
substrate includes an opening surrounded by two or more circular
closed curves.
2. A substrate that is a transparent substrate, in which a
conductor pattern having a mesh shape is formed, wherein the mesh
shape is formed by arranging two or more types of circular closed
curves having different sizes.
3. A substrate that is a transparent substrate, in which a
conductor pattern having a mesh shape is formed, wherein the mesh
shape is formed by arranging three or more types of circular closed
curves having different sizes.
4. A substrate that is a transparent substrate, in which a
conductor pattern is formed, the conductor pattern having a mesh
shape and including a part having periodicity, wherein in the part,
the part having periodicity, of the conductor pattern, a single
type of circular closed curves is used for forming the mesh shape,
and one circular closed curve is surrounded by six other circular
closed curves.
5. A substrate that is a transparent substrate, in which a
conductor pattern is formed, the conductor pattern having a mesh
shape and including a part having periodicity, wherein the part,
the part having periodicity, of the conductor pattern is
characterized in that a single type of circular closed curves is
used for forming the mesh shape, and an arrangement in which one
circle is in contact with other circles at four positions, top,
bottom, left, and right, is excluded.
6. A substrate that is a transparent substrate, in which a
conductor pattern is formed, the conductor pattern having a mesh
shape and including a part having periodicity, wherein in the part,
the part having periodicity, of the conductor pattern, one or more
types of circular closed curves are used for forming the mesh
shape, and the substrate includes openings of three or more types
of shapes are formed.
7. The substrate according to claim 1, wherein the circular closed
curves are in contact with each other.
8. The substrate according to claim 1, wherein the circular closed
curves are overlapped with each other.
9. The substrate according to claim 1, wherein there is a gap among
the circular closed curves and a connecting line for connecting the
circular closed curves is formed in the gap.
10. The substrate according to claim 2, wherein the circular closed
curves are in contact with each other.
11. The substrate according to claim 2, wherein the circular closed
curves are overlapped with each other.
12. The substrate according to claim 2, wherein there is a gap
among the circular closed curves and a connecting line for
connecting the circular closed curves is formed in the gap.
13. The substrate according to claim 3, wherein the circular closed
curves are in contact with each other.
14. The substrate according to claim 3, wherein the circular closed
curves are overlapped with each other.
15. The substrate according to claim 3, wherein there is a gap
among the circular closed curves and a connecting line for
connecting the circular closed curves is formed in the gap.
16. The substrate according to claim 4, wherein the circular closed
curves are in contact with each other.
17. The substrate according to claim 4, wherein the circular closed
curves are overlapped with each other.
18. The substrate according to claim 4, wherein there is a gap
among the circular closed curves and a connecting line for
connecting the circular closed curves is formed in the gap.
19. The substrate according to claim 5, wherein the circular closed
curves are in contact with each other.
20. The substrate according to claim 5, wherein the circular closed
curves are overlapped with each other.
21. The substrate according to claim 5, wherein there is a gap
among the circular closed curves and a connecting line for
connecting the circular closed curves is formed in the gap.
22. The substrate according to claim 6, wherein the circular closed
curves are in contact with each other.
23. The substrate according to claim 6, wherein the circular closed
curves are overlapped with each other.
24. The substrate according to claim 6, wherein there is a gap
among the circular closed curves and a connecting line for
connecting the circular closed curves is formed in the gap.
Description
TECHNICAL FIELD
[0001] The present invention relates to a transparent substrate in
which a conductor pattern having a mesh shape is formed.
BACKGROUND ART
[0002] The film antenna disclosed in Patent Literature 1 is known
as a transparent substrate of related art in which a conductor
pattern having a mesh shape is formed. In Patent Literature 1, an
antenna circuit composed of a net-like conductor is formed so that
the antenna circuit is not visually outstanding. FIG. 1 illustrates
the conductor pattern disclosed in Patent Literature 1. Patent
Literatures 2 to 4 disclose the techniques related to a conductive
film in which a conductor pattern having a mesh shape is formed and
a transparent heating element. Each of Patent Literatures 2 to 4
points out that shafts of light are generated due to backlight or
the like and discloses the technique for preventing shafts of
light.
PRIOR ART LITERATURE
Patent Literature
[0003] Patent Literature 1: Japanese Patent Application Laid Open
No. H1-49302
[0004] Patent Literature 2: Japanese Patent Application Laid Open
No. 2009-302035
[0005] Patent Literature 3: Japanese Patent Application Laid Open
No. 2015-131633
[0006] Patent Literature 4: Japanese Patent Application Laid Open
No. 2016-190617
SUMMARY OF THE INVENTION
Problems to be Solved by the Invention
[0007] A "shaft of light" generally means "a tip of light; light
seemed as a line" (refer to "Kojien", the sixth edition). In the
technical field related to the present application, it means a line
of light generated when light passes through a transparent
substrate in which a conductor pattern having a mesh shape is
formed. FIG. 2 illustrates an example of shafts of light. The
drawing illustrates shafts of light generated due to backlight of
cars, light of signals, and the like. Each of Patent Literatures 2
to 4 discloses an example of a technique for preventing shafts of
light, but does not disclose a technique for comprehensively
preventing shafts of light.
[0008] Therefore, the present invention aims to add examples of the
technique for preventing shafts of light.
Means to Solve the Problems
[0009] Each substrate according to the present invention is a
transparent substrate in which a conductor pattern having a mesh
shape is formed. In a first substrate according to the present
invention, the conductor pattern includes a part composed of a
plurality of arrays of circular closed curves. Respective adjacent
arrays include arrays different in any of period, waveform, or
phase. The substrate includes an opening surrounded by two or more
circular closed curves. In a second substrate according to the
present invention, the mesh shape is formed by arranging two or
more types of circular closed curves having different sizes. In a
third substrate according to the present invention, the mesh shape
is formed by arranging three or more types of circular closed
curves having different sizes. In a fourth substrate according to
the present invention, the conductor pattern includes a part having
periodicity. In the part, which has periodicity, of the conductor
pattern, a single type of circular closed curves is used for
forming the mesh shape, and one circular closed curve is surrounded
by six other circular closed curves. In a fifth substrate according
to the present invention, the conductor pattern includes a part
having periodicity. In the part, which has periodicity, of the
conductor pattern, a single type of circular closed curves is used
for forming the mesh shape. However, an arrangement in which one
circle is in contact with other circles at four positions, top,
bottom, left, and right, is excluded. In a sixth substrate
according to the present invention, the conductor pattern includes
a part having periodicity. In the part, which has periodicity, of
the conductor pattern, one or more types of circular closed curves
are used for forming the mesh shape, and the substrate includes
openings of three or more types of shapes are formed.
Effects of the Invention
[0010] According to the substrate of the present invention, the
technique for preventing shafts of light in a different way from
the techniques disclosed in Patent Literatures 2 to 4 is described,
providing an equivalent or superior advantageous effect for
preventing shafts of light.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a diagram illustrating a conductor pattern
described in Patent Literature 1.
[0012] FIG. 2 is a diagram illustrating an example of shafts of
light.
[0013] FIG. 3 is a diagram illustrating an example of a mesh
bringing shafts of light observed.
[0014] FIG. 4 is a diagram illustrating an example of a mesh by
which shafts of light are prevented.
[0015] FIG. 5 is a diagram illustrating a result obtained by
simulating distribution of light intensity for each mesh shape.
[0016] FIG. 6 is a diagram illustrating a configuration example of
a substrate according to the present invention.
[0017] FIG. 7 is a diagram illustrating a conductor pattern 900 in
which respective adjacent arrays are the same as each other in all
of period, waveform, and phase.
[0018] FIG. 8 is a diagram illustrating a conductor pattern 100 in
which respective adjacent arrays are the same as each other in
period and waveform but are different from each other in phase.
[0019] FIG. 9 is a diagram illustrating a conductor pattern 150 in
which respective adjacent arrays are the same as each other in
period and waveform but are different from each other in phase.
[0020] FIG. 10 is a diagram illustrating a conductor pattern 200 in
which respective adjacent arrays are the same as each other in
period but are different from each other in waveform.
[0021] FIG. 11 is a diagram illustrating a conductor pattern 250 in
which respective adjacent arrays are different from each other in
period.
[0022] FIG. 12 is a diagram illustrating a conductor pattern 160 in
which circular closed curves are overlapped with each other.
[0023] FIG. 13 is a diagram illustrating a conductor pattern 170 in
which gaps are formed among circular closed curves and connecting
lines for connecting the circular closed curves are formed in the
gaps.
[0024] FIG. 14 is a diagram illustrating a conductor pattern 300 in
which three types of circular closed curves are arranged.
[0025] FIG. 15 is a diagram illustrating a conductor pattern 350 in
which three types of circular closed curves are arranged.
[0026] FIG. 16 is a diagram illustrating a conductor pattern 400 in
which two types of circular closed curves are arranged.
[0027] FIG. 17 is a diagram illustrating a conductor pattern 500 in
which two types of circular closed curves are arranged.
[0028] FIG. 18 is a diagram illustrating a conductor pattern 550 in
which two types of circular closed curves are arranged.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] An embodiment of the present invention is detailed below.
Components having the same functions are given the same reference
characters and duplicate description thereof is omitted.
First Embodiment
[0030] The present invention relates to a transparent substrate in
which a conductor pattern having a mesh shape is formed. The
"transparent substrate" is a transparent insulator and may be a
board made of glass, resin, or the like, or a film to be pasted on
a window. A conductor pattern is formed on a surface of a
transparent substrate or in the transparent substrate so that the
conductor pattern is not easily visually recognized. Patent
Literatures 1 to 4 describe applications of a conductor pattern: an
antenna and a heating material. However, applications are not
limited in the present application. Spacing in a mesh may be set
from 100 micrometers to several millimeters, and a line width of a
conductor pattern may be set from several micrometers to several
dozens of micrometers. However, it is conceivable that requirement
for visibility varies depending on applications, so that spacing in
a mesh and a line width of a conductor pattern may be appropriately
set depending on required visibility.
[0031] <Analysis>
[0032] FIG. 3 illustrates an example of a mesh bringing shafts of
light observed. FIG. 4 illustrates an example of a mesh by which
shafts of light are prevented. In FIG. 3 and FIG. 4, green LED
light is shown on the central part of observation results and red
LED light is shown on the upper right side. Since difference in
shafts of light is easily recognized in green light in this
observation, the description is provided while referring to light
on the central part. A first mesh in FIG. 3 is composed of
rhombuses, a second mesh in FIG. 3 is composed of shapes obtained
by changing each side of rhombuses to a waved line, and a third
mesh in FIG. 3 is composed of hexagons. Shafts of light are clearly
observed in the observation results shown in FIG. 3. However, the
second observation result shows smaller shafts of light than those
in the first observation result. It is conceivable that this is
caused by the change of each side to a waved line. That is, shafts
of light are more easily generated when each side is a straight
line. Thus, shafts of light are generated depending on a shape of
closed curves composing a mesh. Here, a "closed curve" means a
shape closed by straight lines or curved lines. Examples of a
closed curve include a rhombus, a shape obtained by changing each
side of a rhombus to a waved line, a hexagon, and a circle.
[0033] Meshes illustrated in FIG. 4 are formed by arranging
circular closed curves. A "circular closed curve" means not only an
exact circle but also an oval and a shape obtained by changing a
part of a circle to a straight line, for example. Though shafts of
light in the observation results are blurred in all directions in
FIG. 4, clear shafts of light as those in the examples in FIG. 3
cannot be observed.
[0034] FIG. 5 illustrates a result obtained by simulating
distribution of light intensity for each mesh shape. A black part
in the simulation results is a part exhibiting higher light
intensity. Shafts of light are easily observed when light intensity
is high only in a particular direction. The first drawing of FIG. 5
illustrates a simulation result for a mesh composed of hexagons.
The result is the same as the third observation result in FIG. 3 in
which shafts of light have been observed in six directions.
[0035] The second mesh of FIG. 5 and the first mesh of FIG. 4 are
the same mesh and the third mesh of FIG. 5 and the second mesh of
FIG. 4 are the same mesh. The second simulation result in FIG. 5
shows few black parts. Accordingly, it is considered that shafts of
light have not been observed in the first observation result in
FIG. 4. The third simulation result in FIG. 5 shows several black
parts. However, the black parts are spread in multiple directions,
so that it is considered that these parts have not been observed as
shafts of light in the second observation result in FIG. 4. When
the second result and the third result in FIG. 5 are compared to
each other, it is considered that the second mesh is more suitable
for prevention of shafts of light because light having high
intensity is not spread in the second result.
[0036] The fourth mesh in FIG. 5 is formed by irregularly arranging
five types of circles having different sizes. In the simulation
result of this example, there are no black parts other than the
center. Further, light in low intensity is substantially equally
spread in all directions. That is, this is more suitable for
prevention of shafts of light compared to the second mesh of FIG.
5. Accordingly, it is considered that shafts of light can be more
easily prevented if a mesh is composed of circular closed curves
having different sizes.
[0037] In other words, it is understood that shafts of light are
easily generated when conditions: [0038] a shape of openings is
composed of only straight lines (polygonal), and [0039] identical
shapes are orderly arranged (all of periods, waveforms, and phases
are respectively the same between arrays) are satisfied. Here, an
"opening" means a part which is defined by a line/lines of a
conductor pattern and in which a conductor is not present.
"Period", "waveform", and "phase" are described later.
[0040] Patent Literatures 2 to 4 disclose the technique for
preventing shafts of light by different means from that of the
present application. FIG. 5 of Patent Literature 2 illustrates the
second mesh of FIG. 4 (the third mesh of FIG. 5). However, Patent
Literatures 2 to 4 do not show or imply the first mesh of FIG. 4
(the second mesh of FIG. 5), the third mesh of FIG. 4, or the
fourth mesh of FIG. 5.
[0041] Specific shapes 1 to 6 below describe definition of shapes
(mesh shapes) of conductor patterns for preventing shafts of light
and explain terms.
[0042] <Specific Shape 1>
[0043] FIG. 6 illustrates a configuration example of a substrate
according to the present invention. A substrate 10 is a transparent
substrate in which a conductor pattern 100 having a mesh shape is
formed. The "transparent substrate" is a transparent insulator and
may be a board made of glass, resin, or the like, or a film to be
pasted on a window. The conductor pattern 100 includes a part
composed of a plurality of arrays of circular closed curves.
Respective adjacent arrays include arrays different in any of
period, waveform, or phase. Further, the substrate 10 includes
openings surrounded by two or more circular closed curves.
[0044] FIG. 7 illustrates a conductor pattern 900 in which
respective adjacent arrays are the same as each other in all of
period, waveform, and phase. FIG. 8 illustrates the conductor
pattern 100 in which respective adjacent arrays are the same as
each other in period and waveform but are different from each other
in phase. FIG. 9 illustrates a conductor pattern 150 in which
respective adjacent arrays are the same as each other in period and
waveform but are different from each other in phase. FIG. 10
illustrates a conductor pattern 200 in which respective adjacent
arrays are the same as each other in period but are different from
each other in waveform. FIG. 11 illustrates a conductor pattern 250
in which respective adjacent arrays are different from each other
in period. FIG. 12 illustrates a conductor pattern 160 in which
circular closed curves are overlapped with each other. FIG. 13
illustrates a conductor pattern 170 in which gaps are formed among
circular closed curves and connecting lines for connecting the
circular closed curves are formed in the gaps.
[0045] A "circular closed curve" means not only an exact circle but
also an oval and a shape obtained by changing a part of a circle to
a straight line, for example, and is thus an expression including a
range equivalent to a circle in an occurrence of shafts of light.
An "array" is a line of circular closed curves constituting a
conductor pattern. In FIGS. 7 to 13, arrays in a horizontal
direction are described as array A and array B. However, FIG. 7
also has arrays in a vertical direction and FIG. 8 also has oblique
arrays. On the other hand, FIG. 11 has arrays in the horizontal
direction but does not have arrays in other directions. The
description "respective adjacent arrays include arrays different in
any of period, waveform, or phase" means that there are adjacent
arrays, any of periods, waveforms, or phases of which are different
from each other, among adjacent arrays in any direction in which an
array can be recognized.
[0046] A "period" means a repetition interval in an array and
identical "periods" means that the repetition intervals are equal
to each other. Circular closed curves 110 of the same size are
repeatedly arranged in the array A and the array B in FIGS. 7 to 9
and periods (repetition intervals) are thus the same between arrays
each other. Further, circular closed curves 110 are repeatedly
arranged in the array A and circular closed curves 120 are
repeatedly arranged with intervals therebetween in the array B in
FIG. 10. The array A and the array B have the same repetition
intervals and the periods of the arrays are therefore the same as
each other. Circular closed curves 110 are repeatedly arranged in
the array A and circular closed curves 120 are repeatedly arranged
in the array B in FIG. 11. The array A and the array B have
different repetition intervals from each other and the periods
thereof are therefore different from each other.
[0047] A "waveform" means positions on which lines of a conductor
pattern exist in one period. The circular closed curves 110 of the
same size are repeatedly arranged in the array A and the array B in
FIGS. 7 to 9 and positions of lines of the conductor patterns are
thus the same between arrays in one period. Accordingly,
"waveforms" are the same as each other. In FIG. 10, positions of
lines of the conductor pattern are different from each other in one
period in the array A and the array B and therefore, the array A
and the array B are different from each other in "waveform".
[0048] A "phase" means a repetition position. The "phase" is
further described by using a different expression. When periods and
waveforms of adjacent arrays are respectively the same as each
other and one point in one period is set as a position of phase 0,
both arrays include the position of the phase 0. A situation that
positions of the points defined as the phase 0 are the same as each
other between adjacent arrays is a situation that phases are the
same as each other, while a situation that positions of the points
are different from each other is a situation that phases are
different from each other. The circular closed curves 110 are
arranged in the same manner between the array A and the array B in
FIG. 7, so that "phases" are the same as each other. On the other
hand, the circular closed curves 110 of the array A and the
circular closed curves 110 of the array B are arranged in a manner
to be shifted by a half of a circle in FIG. 8, so that "phases" are
different from each other. The circular closed curves 110 of the
array A and the circular closed curves 110 of the array B are
shifted from each other in FIG. 9 as well, so that "phases" are
different from each other. The case where "waveforms" of adjacent
arrays are different from each other as illustrated in FIG. 10
corresponds to the situation that "any of periods, waveforms, or
phases are different from each other", so that there is no need for
comparing "phases". Further, the case where "periods" of adjacent
arrays are different from each other as illustrated in FIG. 11
corresponds to the situation that "any of periods, waveforms, or
phases are different from each other", so that there is no need for
comparing "waveforms" or "phases".
[0049] An "opening" means a part which is defined by a line/lines
of a conductor pattern and in which a conductor is not present. In
case of the conductor pattern 100 of FIG. 8, there are an opening a
surrounded by a circular closed curve 110 and an opening b
surrounded by three circular closed curves 110. In case of the
conductor pattern 150 of FIG. 9, there are an opening a surrounded
by a circular closed curve 110 and an opening b surrounded by four
circular closed curves 110. The opening b of FIG. 8 and the opening
b of FIG. 9, for example, correspond to an "opening surrounded by
two or more circular closed curves (circular closed curves
constituting an array)".
[0050] In the specific shape 1, respective adjacent arrays are
different from each other in any of periods, waveforms, or phases,
so that shafts of light can be equivalently or further prevented
compared to the conductor pattern illustrated in FIG. 7. FIG. 8
illustrates the example in which all the circular closed curves 110
are in contact with each other, but the circular closed curves 110
may be overlapped with each other as illustrated in FIG. 12. A
reference numeral 101 denotes an overlapped part. As illustrated in
FIG. 13, there may be gaps among the circular closed curves 110 and
connecting lines 190 for connecting the circular closed curves may
be formed in the gaps. Further, as illustrated in FIG. 11, there
may be both of the overlapped part 101 and the connecting line 190.
Furthermore, conductor patterns 400, 500, and 550 in FIGS. 16 to 18
described later correspond to the specific shape 1 because
"waveforms" of adjacent arrays are different from each other.
[0051] <Specific Shape 2>
[0052] The substrate 10 is a transparent substrate in which a
conductor pattern having a mesh shape is formed. The mesh shape is
formed by arranging two or more types of circular closed curves
having different sizes.
[0053] FIG. 14 illustrates a conductor pattern 300 in which three
types of circular closed curves are arranged. FIG. 15 illustrates a
conductor pattern 350 in which three types of circular closed
curves are arranged. FIG. 16 illustrates a conductor pattern 400 in
which two types of circular closed curves are arranged. FIG. 17
illustrates a conductor pattern 500 in which two types of circular
closed curves are arranged. FIG. 18 illustrates a conductor pattern
550 in which two types of circular closed curves are arranged.
[0054] FIG. 14 illustrates an example in which circular closed
curves 110, 130, and 140 are in contact with each other. FIG. 15
illustrates an example in which there are overlapped parts 101 and
connecting lines 190. The conductor pattern 400 of FIG. 16 has a
shape obtained by replacing a part of the circular closed curves
110 illustrated in the conductor pattern 900 of FIG. 7 with a
circular closed curve 120 having a smaller size. The conductor
pattern 500 of FIG. 17 has a shape obtained by replacing part of
the circular closed curves 110 illustrated in the conductor pattern
100 of FIG. 8 with circular closed curves 120 having smaller size.
The conductor pattern 550 of FIG. 18 has a shape obtained by
replacing part of the circular closed curves 110 illustrated in the
conductor pattern 100 of FIG. 8 with circular closed curves 120
having smaller size and by further adding connecting lines 190. The
conductor patterns 200 and 250 of FIGS. 10 and 11 also correspond
to the specific shape 2.
[0055] The specific shape 2 includes two or more types of circular
closed curves having different sizes, being more similar to the
fourth mesh in FIG. 5 than the shapes of FIGS. 7 to 9. Accordingly,
shafts of light can be further prevented compared to the conductor
pattern illustrated in FIG. 7. Further, the specific shape 2 is not
defined by using an "array", so that the specific shape 2 can be
defined to include a shape as that of the conductor patterns 300
and 350 which are respectively illustrated in FIGS. 14 and 15 and
in which any array of circular closed curves cannot be recognized
in any directions.
[0056] <Specific Shape 3>
[0057] The substrate 10 is a transparent substrate in which a
conductor pattern having a mesh shape is formed. The mesh shape is
formed by arranging three or more types of circular closed curves
having different sizes.
[0058] The conductor patterns 300 and 350 respectively illustrated
in FIGS. 14 and 15 correspond to the specific shape 3. The
conductor patterns illustrated in FIGS. 14 and 15 do not have
arrays as those of FIGS. 7 to 13 and FIGS. 16 to 18. Thus, the
conductor patterns 300 and 350 are further similar to the fourth
mesh of FIG. 5. Accordingly, shafts of light can be further
prevented.
[0059] <Specific Shape 4>
[0060] The substrate 10 is a transparent substrate in which a
conductor pattern having a mesh shape is formed. Further, the
conductor pattern includes a part having periodicity. In the part,
which has periodicity, of the conductor pattern, a single type of
circular closed curves is used for forming a mesh shape, and one
circular closed curve is surrounded by six other circular closed
curves.
[0061] The conductor patterns 100, 160, and 170 respectively
illustrated in FIGS. 8, 12, and 13 correspond to the specific shape
4. These conductor patterns are similar to the second mesh in FIG.
5 and phases of respective adjacent arrays are opposite to each
other, so that these conductor patterns can further prevent shafts
of light compared to the conductor pattern illustrated in FIG.
7.
[0062] <Specific Shape 5>
[0063] The substrate 10 is a transparent substrate in which a
conductor pattern having a mesh shape is formed. Further, the
conductor pattern includes a part having periodicity. In the part,
which has periodicity, of the conductor pattern, a single type of
circular closed curves is used for forming a mesh shape. Note that
an arrangement in which one circle is in contact with other circles
at four positions, top, bottom, left, and right, is excluded.
[0064] The conductor patterns 100, 150, 160, and 170 respectively
illustrated in FIGS. 8, 9, 12, and 13 correspond to the specific
shape 5. These conductor patterns have adjacent arrays which are
different from each other in phase, being able to equivalently or
further prevent shafts of light compared to the conductor pattern
illustrated in FIG. 7. The above noting is provided for excluding
the shape of FIG. 7.
[0065] <Specific Shape 6>
[0066] The substrate 10 is a transparent substrate in which a
conductor pattern having a mesh shape is formed. Further, the
conductor pattern includes a part having periodicity. In the part,
which has periodicity, of the conductor pattern, one or more types
of circular closed curves are used for forming a mesh shape, and
openings of three or more types of shapes are formed.
[0067] An "opening" means a part which is defined by a line/lines
of a conductor pattern and in which a conductor is not present. The
conductor patterns 200, 250, 160, 400, 500, and 550 respectively
illustrated in FIGS. 10 to 12 and FIGS. 16 to 18 correspond to the
specific shape 6. For example, in case of the conductor pattern 200
in FIG. 10, there are an opening a formed by a circular closed
curve 110, an opening b formed by a circular closed curve 120, an
opening c surrounded by two circular closed curves 110 and two
circular closed curves 120, and an opening d surrounded by two
circular closed curves 110 and one circular closed curve 120. In
case of the conductor pattern 160 in FIG. 12, there are an opening
a formed by five circular closed curves 110 (a shape obtained by
removing four overlapped parts 101 from one circular closed curve
110), an opening b formed by two circular closed curves 110
(overlapped part 101), and an opening c formed by three circular
closed curves 110. In case of the conductor pattern 400 in FIG. 16,
there are an opening a formed by a circular closed curve 110, an
opening b formed by a circular closed curve 120, an opening c
surrounded by three circular closed curves 110 and one circular
closed curve 120, and an opening d surrounded by seven circular
closed curves 110 and one circular closed curve 120. In case of the
conductor pattern 550 in FIG. 18, there are an opening a formed by
a circular closed curve 110, an opening b formed by a circular
closed curve 120, and an opening c surrounded by three circular
closed curves 110, one circular closed curve 120, and two
connecting lines 190.
[0068] Waveforms or phases of respective adjacent arrays are
differed from each other in these shapes, so that these shapes can
further prevent shafts of light compared to the conductor pattern
illustrated in FIG. 7.
DESCRIPTION OF REFERENCE NUMERALS
[0069] 100, 150, 160, 170, 200, 250, 300, 350, 400, 500, 550, 900
conductor pattern [0070] 101 overlapped part [0071] 110, 120, 130,
140 circular closed curve [0072] 190 connecting line
* * * * *